在Windows上运行Python 3.12。尝试导入多个.csv文件并导出为多个颜色图。我想添加测量单位和标记，但我似乎无法获得try：部分的格式。我能想到的对第11-13行的每一个更改给予我SyntaxError。

import pandas as pd
import matplotlib.pyplot as plt

file_paths = ["1.csv, "2.csv","3.csv", "4.csv"]
import os

try:
    open (r"C:/Users/USER/FOLDER/CSV_FILES")
except: os.path.isfile(path)
with open(path, "r") as f:
    pass
finally IOError
    print("The file cannot be opened")

file_paths = [os.path.join(directory, filename) for filename in 
os.listdir(directory) if filename.endswith(".csv")]

colors = plt.cm.viridis(range(len(file_paths)))

for i, file_path in enumerate(file_paths):
    df = pd.read_csv(file_path)

    # Define data to plot
    x = df["column1"]
    y = df["column2"]

    # Create plot with unique color
    plt.plot(x, y, color=colors[i], label=file_path.split("/")[-1].split(".")[0]) 
         
    plt.legend()
    plt.title("Graph from", file_path)

    # Save plot as image
    plt.savefig(f"graph_{i + 1}.png")
    plt.clf()

字符串
我尝试了一些更简单的'导入操作系统'部分，我得到了权限错误PermissionError：[Errno 13]权限拒绝：'C：/Users/USER/FOLDER/CSV_FILES'

directory = open(r"C:/Users/USER/FOLDER/CSV_FILES")
 assert os.path.isfile(path)
 with open(path, "r") as f:
     pass
 file_paths = [os.path.join(directory, filename) for filename in os.listdir(directory) if filename.endswith(".csv")]

型
应为4.csv文件提供具有多种颜色的图形